More pocked with craters than any other object in our solar system, Jupiter's outermost and second-biggest Galilean moon, Callisto, appears geologically unremarkable. In the 1990s, however, NASA's ...

Water flow at the upper Salt River was measured at a paltry 130 cubic feet per second on Monday, a total that is just 20% of ...

Salinity has been an enemy of agriculture for millennia because even though many crops can withstand low to moderate salt ...